Answer :

The volume of a cube of side 4cm = 4 × 44 = 64cm^{3} when it is sliced into 1cm^{3} cubes, we will get 64small cubes.

In each side of the larger cube, the smaller cubes in the edges will have more than one face painted.

The cube which are situated at the corner of big cube, have three faces painted.

So, to each edge two small cubes are left which have two faces painted. As,the total numbers of edges in a cubes are 12.

Hence, the number of small cubes with two faces painted = 12 × 2 = 24.

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